How to: Rear speaker shelf refurbishing

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How to: Rear speaker shelf refurbishing

Postby straight6pwr » Thu Jan 13, 2011 5:20 am

This how to covers a number of things you may need to do regarding the rear speaker shelf:
Complete replacement/removal
Upgrade from early model to late model shelf

DISCLAIMER: There may be slight difference in how your deck is arranged based on what model car you have.
Basic differences:
Euro cars: some have no 3rd brake light, some have no cutouts for speakers
Early Early cars (85 318 i think): slightly different placement of the seat belt mechanism
M3: no 3rd brake light (its mounted to the ceiling)

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PART 1:REMOVE THE OLD SHELF

1)Remove rear seats
Pull up on the front of the seat bottom to pop it out. It will then be free to take out.
To remove the back, there are two brackets located at the very bottom corners of the seat back. Remove the 10mm screw on each side, then lift the seat back upward to free it from the car.

I never bolt the seat back to the car, so I can just pop the seat back off by itself.
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2)Unbolt the seatbelt on the bottom where it attaches to the body of the car
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3)Remove the plastic covers where the seat belt goes into the shelf
Use a screwdriver and pry up on the front edge to pop it up, then rotate it upward to free it.

4)Lift up the shelf in the front. There is one plastic clip in the middle front which will pop out by just pulling. With the shelf tilted up, reach in and disconnect the speakers and the 3rd brake light plug. The speakers have 2 wires to unplug, and the 3rd brake light is a single black plug.
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5)Pull the seat belts through their respective holes, then simply pull the shelf out.

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PART 2: MAKING YOUR FADED SHELF BLACK AGAIN
Every original e30 shelf I have seen has been light gray or faded to shades of gray. To make it nice again,

1)Go buy a can of this (or a similar type of spray paint) They sell it in a bunch of colors, if black isn't your thing (you racist!)
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3)Remove everything from the shelf.
The vents on the back just pop out.
The seat belt holder (triangle) has a nut to remove on the bottom side
The speakers are removed by prying off the grills, then unscrewing the 4 corner screws.
If you have a late model shelf, there is no 3rd brake light. If you have an early model, remove the 3rd brake light.

2)Apply paint as directed on the can. I used the entire can (4 coats). In between coats, I used a stiff brush and worked the paint into the fabric. For the final coat I sprayed evenly and did not use a brush, which resulted in a pretty even coat.

here is a comparison between the faded and the newly resprayed:

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PART 3: INSTALLATION

Installation is the direct opposite of removal, no tricks here. If you are changing from an early shelf to a late shelf, read on...

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APPENDIX A: MODIFYING TO FIT A LATE MODEL DECK (3RD BRAKE LIGHT) ON AN EARLY CAR

My car is an 88, so it is technically a late model car, but BMW left the shelf as the early style.

1)Cut a hole where you can access the brake light bulb through the trunk. If you don't, you will have to remove the entire shelf and brake light unit to change the bulb when it dies (pain in the ass). I used a Dremel with cut-off wheel. You can cut through from the top or from in your trunk.

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2)Bolt on the brake light in the direct center of the car. I just used some nice self tappers since there are no stock holes provided.
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viola! my awesome new rear shelf is installed. took me 3 hours including spray painting the shelf.

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Re: How to: Rear speaker shelf refurbishing

Postby M20_fever » Thu Jan 13, 2011 7:31 am

well done, sticky!
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Re: How to: Rear speaker shelf refurbishing

Postby ten2doyle102 » Thu Jan 13, 2011 5:42 pm

Much nicer!!! :) You do work quite fast huh! ;)
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Re: How to: Rear speaker shelf refurbishing

Postby siazul » Thu Jan 13, 2011 7:07 pm

Great Job, my shelf is light blue I hope this works the same, where did you buy the can of paint?
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Re: How to: Rear speaker shelf refurbishing

Postby M20_fever » Thu Jan 13, 2011 11:08 pm

Autozone carries Duplicolor, thats where I buy it.
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Re: How to: Rear speaker shelf refurbishing

Postby straight6pwr » Fri Jan 14, 2011 12:10 am

siazul wrote:Great Job, my shelf is light blue I hope this works the same, where did you buy the can of paint?


Yeah, Autozone. Although the one I got it from was bought and now is O'Reilly but carries the same stuff.

ten2doyle102 wrote:Much nicer!!! :) You do work quite fast huh! ;)


being outside in 30 deg weather will make you work with a little motivation.
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Re: How to: Rear speaker shelf refurbishing

Postby 87e30 » Fri Jan 14, 2011 3:19 am

The Autozone I went to looking for duplicolor paint had a total of 6 different ones. 4 metalics, 1 clear, and 1 other one. If your Autozone is the same, try Pep Boys or Home Depot.
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Re: How to: Rear speaker shelf refurbishing

Postby siazul » Tue Jan 18, 2011 2:14 am

what kind of brush between coats?
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Re: How to: Rear speaker shelf refurbishing

Postby straight6pwr » Wed Jan 19, 2011 4:55 am

siazul wrote:what kind of brush between coats?


i used one of these, although a smaller, round one would have worked better:

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Re: How to: Rear speaker shelf refurbishing

Postby siazul » Wed Jan 19, 2011 4:39 pm

Ok Thanks, I just need the brush now, I got the paint in my car
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Re: How to: Rear speaker shelf refurbishing

Postby siazul » Thu Jan 20, 2011 2:45 am

woo hoo lol I got this knocked out, now I need to work on the headliner. I ended up using a toothbrush to work in the paint
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Re: How to: Rear speaker shelf refurbishing

Postby straight6pwr » Fri Jan 21, 2011 4:46 am

siazul wrote:woo hoo lol I got this knocked out, now I need to work on the headliner. I ended up using a toothbrush to work in the paint


very nice. i'm worried about doing the headliner. (mess, smooth surface, painting upside down, etc) i want to do it, just might decide it will look worse when I screw it up. :mrgreen:
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Re: How to: Rear speaker shelf refurbishing

Postby M20_fever » Fri Jan 21, 2011 9:48 pm

If the headliner is just dirty/stained try the Mr. Clean Magic Eraser, worked wonders on my headliner. It was filthy with greasy finger prints (oops) water stains, 20 years of grime, and it came perfectly clean, looks brand new.
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Re: How to: Rear speaker shelf refurbishing

Postby straight6pwr » Fri Jan 21, 2011 11:01 pm

M20_fever wrote:If the headliner is just dirty/stained try the Mr. Clean Magic Eraser, worked wonders on my headliner. It was filthy with greasy finger prints (oops) water stains, 20 years of grime, and it came perfectly clean, looks brand new.


its more that it is faded gray, and will be the last part of my interior which is not either black or tan (also minty). going for the cleanest DD interior i can possible make! :mrgreen:
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Re: How to: Rear speaker shelf refurbishing

Postby EqualizedCustoms » Sat Jan 22, 2011 3:20 am

i need to do this to mine. and id like my headliner black also. gotta wait til summer though.

Good write up though
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